"Radicals from the gas-phase pyrolysis of a lignin model compound: -cou" by Meng-Xia Xu, Lavrent Khachatryan et al.

Faculty Publications

Title

Radicals from the gas-phase pyrolysis of a lignin model compound: -coumaryl alcohol

Authors

Meng-Xia Xu, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
Lavrent Khachatryan, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
Alexander Baev, Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
Rubik Asatryan, Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.

Document Type

Article

Publication Date

1-1-2016

Abstract

The intermediate radicals produced in the gas-phase pyrolysis of one of the main building blocks of lignin - -coumaryl alcohol (-CMA) - were investigated using the low temperature matrix isolation technique interfaced with electron paramagnetic resonance spectroscopy (LTMI-EPR). An anisotropic EPR spectrum characterized by a high -value (>2.0080) and a relatively low saturation coefficient (∼1.40) throughout the high pyrolytic temperature region (700 to 1000 °C) was observed. Theoretical calculations revealed plausible decomposition pathways for -CMA comprising highly delocalized aromatic radicals. The results provide evidence for a dominant role of oxygen-centered radicals during the pyrolysis of -CMA.

Publication Source (Journal or Book title)

RSC advances

First Page

62399

Last Page

62405

Recommended Citation

Xu, M., Khachatryan, L., Baev, A., & Asatryan, R. (2016). Radicals from the gas-phase pyrolysis of a lignin model compound: -coumaryl alcohol. RSC advances, 6 (67), 62399-62405. https://doi.org/10.1039/c6ra11372a

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